The OnDisplay Window Mounted Clear Acrylic Bird Feeder allows you to bring bird watching inside your home. Constructed of handmade acrylic, this bird feeder features two ultra strong, weather-resistant suction cups which allow it to safely secure to any window. Kids young and old will enjoy seeing wild birds literally come right up to your window. OnDisplay uses only premium top grade acrylic that is scratch resistant and won't turn yellow. Beware of similar feeders made of molded plastics that will crack and cannot be left in cold and hot weather. This bird feeder can easily be filled with any wild bird seed and is easily cleaned with a soft cloth and water. The clear acrylic allows you to see the seed level even from inside your home while the clear roof repels water keeping the food dry. Perfect for home or office or wherever you want to bird-watch. Measures 5.9" x 5.2" x 4".